24393993 has 16 divisors (see below), whose sum is σ = 36158976. Its totient is φ = 14526720.

The previous prime is 24393983. The next prime is 24394001. The reversal of 24393993 is 39939342.

It is not a de Polignac number, because 24393993 - 2⁴ = 24393977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (24393923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8880 + ... + 11297.

It is an arithmetic number, because the mean of its divisors is an integer number (2259936).

Almost surely, 2^24393993 is an apocalyptic number.

It is an amenable number.

24393993 is a deficient number, since it is larger than the sum of its proper divisors (11764983).

24393993 is a wasteful number, since it uses less digits than its factorization.

24393993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20224.

The product of its digits is 157464, while the sum is 42.

The square root of 24393993 is about 4939.0275358617. The cubic root of 24393993 is about 290.0197885823.

The spelling of 24393993 in words is "twenty-four million, three hundred ninety-three thousand, nine hundred ninety-three".